2149101 has 6 divisors (see below), whose sum is σ = 3104270. Its totient is φ = 1432728.

The previous prime is 2149093. The next prime is 2149111. The reversal of 2149101 is 1019412.

2149101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1550025 + 599076 = 1245^2 + 774^2 .

It is not a de Polignac number, because 2149101 - 2³ = 2149093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119386 + ... + 119403.

2^2149101 is an apocalyptic number.

It is an amenable number.

2149101 is a deficient number, since it is larger than the sum of its proper divisors (955169).

2149101 is a wasteful number, since it uses less digits than its factorization.

2149101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238795 (or 238792 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2149101 is about 1465.9812413534. The cubic root of 2149101 is about 129.0482963203.

The spelling of 2149101 in words is "two million, one hundred forty-nine thousand, one hundred one".